Studer

Studer S131r cylindrical grinder

SKU: S 131r
Studer S131r cylindrical grinder The Studer S131r is a modern and versatile internal grinder equipped with a radial hobbing function, enabling precise internal, external, and face grinding of medium-sized workpieces mounted in chucks. The machine can handle workpieces with a maximum rotation diameter of 300 mm and a weight of up to 100 kg. The S131r is specifically designed for grinding intricate components made from very hard materials such as tungsten carbide, ceramics and sapphire, but it also handles general grinding tasks well. The grinder is distinguished by the use of a precise StuderGuide® guide system, dynamic axis drives with linear motors and an automatic B-axis workpiece rotation with direct drive, which ensure the highest quality and repeatability of processing even with complex geometries and demanding materials. Key Features of the Studer S131r: Maximum workpiece diameter: 300 mm, Maximum workpiece weight: 100 kg, Radius hobbing, Grinding: internal, frontal, external, Rotating tool head equipped with up to 4 grinding spindles, Specialization: hard materials – carbide, ceramics, sapphire, StuderGuide® – an innovative guide system, Dynamic linear drives – fast and precise axis operation, Automatic B-axis workpiece rotation with direct drive – accurate settings for complex cycles. Application: The Studer S131r is the perfect choice for manufacturing companies and tool shops that need a flexible, advanced solution for precision machining of holes and radial surfaces – especially for medium-sized parts with complex geometries made of the hardest materials.

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Product description

Studer S131r cylindrical grinder

The Studer S131r is a modern and versatile internal grinder equipped with a radial hobbing function, enabling precise internal, external, and face grinding of medium-sized workpieces mounted in chucks. The machine can handle workpieces with a maximum rotation diameter of 300 mm and a weight of up to 100 kg.

The S131r is specifically designed for grinding intricate components made from very hard materials such as tungsten carbide, ceramics and sapphire, but it also handles general grinding tasks well.

The grinder is distinguished by the use of a precise StuderGuide® guide system, dynamic axis drives with linear motors and an automatic B-axis workpiece rotation with direct drive, which ensure the highest quality and repeatability of processing even with complex geometries and demanding materials.

Key Features of the Studer S131r:

  • Maximum workpiece diameter: 300 mm,
  • Maximum workpiece weight: 100 kg,
  • Radius hobbing,
  • Grinding: internal, frontal, external,
  • Rotating tool head equipped with up to 4 grinding spindles,
  • Specialization: hard materials – carbide, ceramics, sapphire,
  • StuderGuide® – an innovative guide system,
  • Dynamic linear drives – fast and precise axis operation,
  • Automatic B-axis workpiece rotation with direct drive – accurate settings for complex cycles.

Application:

The Studer S131r is the perfect choice for manufacturing companies and tool shops that need a flexible, advanced solution for precision machining of holes and radial surfaces – especially for medium-sized parts with complex geometries made of the hardest materials.

Technical Parameters

SKU: S 131r
Brand: Studer
Maximum table load (kg): 100
X-axis travel (mm): 350
Z-axis travel (mm): 400
B-axis rotation (°): -50° …. +280°
Workpiece length (mm): 300
Maximum spindle speed (rpm): 1200
Spindle power (kW): 3
Maximum spindle torque (Nm): 300
Spindle taper: A4/ISO 702-1/MT5
Maximum workpiece diameter (mm): < 300

FAQ

What is the Studer S131r and what is it used for?
The Studer S131r is a new-generation radius internal cylindrical grinding machine for precision internal, external, and face machining of workpieces held in chucks. It is particularly suited to the circumferential grinding of radii, cones, and complex transitions.
What are the basic parameters of the S131r?
The machine has a maximum workpiece rotation diameter of 300 mm, a workpiece length of 300 mm, a workpiece weight of up to 100 kg, and an axis height of 150 mm. The documentation also specifies an X travel of 350 mm and a Z travel of 400 mm.
What makes the S131r stand out in terms of technology?
The model is equipped with StuderGuide®, linear motor axis drives, and a fully automatic B axis with direct drive. This ensures very high precision, good dynamics, and stability with complex geometries.
What materials can be processed on the S131r?
The S131r is designed for very hard materials like tungsten carbide, ceramics, and sapphire, but is also suitable for general grinding tasks. The manufacturer also specifies it for the production of hydraulic parts and dies.
What possibilities does the headstock offer?
The headstock can be configured with up to four grinding spindles, as well as a precision C-axis for shape and thread grinding. This allows the machine to perform multiple operations in a single setup.
Is the S131r suitable for radius machining?
Yes, this is a radius internal cylindrical machine, so it's optimized for grinding radii, spheres, cones, and radial transitions. The manufacturer also specifies automatic B-axis rotation with a range of -60° to +91°.
What does automation and operation look like?
The S131r features the CORE® panel, a portable control unit, and standard interfaces for feeders and peripherals. This simplifies both process setup and integration with line automation.
For which companies will the S131r be the best choice?
The S131r is ideal for manufacturing companies and toolmakers who need a flexible, advanced solution for precision machining of medium-sized parts from the hardest materials. It excels in complex geometries and demanding quality requirements.

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